19467540

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:279

約数の個数: 120

約数和(自身を含む): 62386632

約数和(自身を除く): 42919092

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 61, 81, 90, 108, 122, 135, 162, 180, 183, 197, 244, 270, 305, 324, 366, 394, 405, 540, 549, 591, 610, 732, 788, 810, 915, 985, 1098, 1182, 1220, 1620, 1647, 1773, 1830, 1970, 2196, 2364, 2745, 2955, 3294, 3546, 3660, 3940, 4941, 5319, 5490, 5910, 6588, 7092, 8235, 8865, 9882, 10638, 10980, 11820, 12017, 15957, 16470, 17730, 19764, 21276, 24034, 24705, 26595, 31914, 32940, 35460, 36051, 48068, 49410, 53190, 60085, 63828, 72102, 79785, 98820, 106380, 108153, 120170, 144204, 159570, 180255, 216306, 240340, 319140, 324459, 360510, 432612, 540765, 648918, 721020, 973377, 1081530, 1297836, 1622295, 1946754, 2163060, 3244590, 3893508, 4866885, 6489180, 9733770, 19467540]

約数ペア:

[(1, 19467540), (2, 9733770), (3, 6489180), (4, 4866885), (5, 3893508), (6, 3244590), (9, 2163060), (10, 1946754), (12, 1622295), (15, 1297836), (18, 1081530), (20, 973377), (27, 721020), (30, 648918), (36, 540765), (45, 432612), (54, 360510), (60, 324459), (61, 319140), (81, 240340), (90, 216306), (108, 180255), (122, 159570), (135, 144204), (162, 120170), (180, 108153), (183, 106380), (197, 98820), (244, 79785), (270, 72102), (305, 63828), (324, 60085), (366, 53190), (394, 49410), (405, 48068), (540, 36051), (549, 35460), (591, 32940), (610, 31914), (732, 26595), (788, 24705), (810, 24034), (915, 21276), (985, 19764), (1098, 17730), (1182, 16470), (1220, 15957), (1620, 12017), (1647, 11820), (1773, 10980), (1830, 10638), (1970, 9882), (2196, 8865), (2364, 8235), (2745, 7092), (2955, 6588), (3294, 5910), (3546, 5490), (3660, 5319), (3940, 4941)]